Home / 19,455.89-29,195.64-7,768.13

Finding the Fourth Proportional to 19,455.89, 29,195.64 and 7,768.13

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Solution

The fourth proportional to 19,455.89, 29,195.64 and 7,768.13 is: 11,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.89 : 29,195.64 = 7,768.13 : x
  2. Step 2: Convert to fraction form
    19,455.89/29,195.64 = 7,768.13/x
  3. Step 3: Cross multiply
    19,455.89x = 29,195.64 × 7,768.13
  4. Step 4: Simplify right side
    19,455.89x = 226,795,380.98
  5. Step 5: Solve for x
    x = 226,795,380.98/19,455.89
  6. Step 6: Final answer
    x = 11,656.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.